var OS = navigator.userAgent;
var OSName;

if (OS.indexOf("Win")!=-1) {

	if ((OS.indexOf("Windows NT 5.1")!=-1) || (OS.indexOf("Windows XP")!=-1)) {
		OSName="Win XP";
	} else if ((OS.indexOf("Windows NT 7.0")!=-1) || (OS.indexOf("Windows NT 6.1")!=-1)) {
		OSName="Win 7";
	} else if ((OS.indexOf("Windows NT 6.0")!=-1)) {
		OSName="Win Vista/Server 08";
	} else if (OS.indexOf("Windows ME")!=-1) {
		OSName="Win ME";
	} else if ((OS.indexOf("Windows NT 4.0")!=-1) || (OS.indexOf("WinNT4.0")!=-1) || (OS.indexOf("WinNT")!=-1)) {
		OSName="Win NT";
	} else if ((OS.indexOf("Windows NT 5.2")!=-1)) {
		OSName="Win Server 03";
	} else if ((OS.indexOf("Windows NT 5.0")!=-1) || (OS.indexOf("Windows 2000")!=-1)) {
		OSName="Win 2000";
	} else if ((OS.indexOf("Windows 98")!=-1) || (OS.indexOf("Win98")!=-1)) {
		OSName="Win 98";
	} else if ((OS.indexOf("Windows 95")!=-1) || (OS.indexOf("Win95")!=-1) || (OS.indexOf("Windows_95")!=-1)) {
		OSName="Win 95";
	} else if ((OS.indexOf("Win16")!=-1)) {
		OSName="Win 3.1";
	} else {
		OSName="Win Ver. Unknown";
	}

	/*
	 * This will not be needed for our purposes
	 * 
	if ((OS.indexOf("WOW64")!=-1) || (OS.indexOf("x64")!=-1) || (OS.indexOf("Win64")!=-1) || (OS.indexOf("IA64")!=-1)) {
		OSName=OSName+"(x64)";
	} else {
		OSName=OSName+"(x32)"
	}*/

} else if (OS.indexOf("Mac")!=-1) {
	OSName="MacOS";
} else if (OS.indexOf("X11")!=-1) {
	OSName="UNIX";
} else if (OS.indexOf("Linux")!=-1) {
	OSName="Linux";
}